Rob Shearman : credui: Verify some of the parameters to CredUIPromptForCredentials, like native does.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 3b219c9638486bc041d708d1932d3f579818880c
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=3b219c9638486bc041d708d1932d3f579818880c

Author: Rob Shearman <rob at codeweavers.com>
Date:   Wed Oct 24 16:16:27 2007 +0100

credui: Verify some of the parameters to CredUIPromptForCredentials, like native does.

---

 dlls/credui/credui_main.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/dlls/credui/credui_main.c b/dlls/credui/credui_main.c
index c313107..8d958c4 100644
--- a/dlls/credui/credui_main.c
+++ b/dlls/credui/credui_main.c
@@ -192,6 +192,15 @@ DWORD WINAPI CredUIPromptForCredentialsW(PCREDUI_INFOW pUIInfo,
           debugstr_w(pszTargetName), Reserved, dwAuthError, debugstr_w(pszUsername),
           ulUsernameMaxChars, pszPassword, ulPasswordMaxChars, pfSave, dwFlags);
 
+    if ((dwFlags & (CREDUI_FLAGS_ALWAYS_SHOW_UI|CREDUI_FLAGS_GENERIC_CREDENTIALS)) == CREDUI_FLAGS_ALWAYS_SHOW_UI)
+        return ERROR_INVALID_FLAGS;
+
+    if (!pszTargetName)
+        return ERROR_INVALID_PARAMETER;
+
+    if ((dwFlags & CREDUI_FLAGS_SHOW_SAVE_CHECK_BOX) && !pfSave)
+        return ERROR_INVALID_PARAMETER;
+
     params.pszTargetName = pszTargetName;
     if (pUIInfo)
     {